AI model · Z.ai
GLM 5.3 FlashX
Model ID: z-ai/glm-5.3-flashx
- Input
- $0.37 per 1M tokens
- Output
- $1.25 per 1M tokens
- Context
- 1M tokens at once
- Max output
- 131K tokens per reply
- Released
- 18 Sep 2026 Z.ai
What it can do
- YesReasoning
- YesTool calling
- YesImage input
- NoOpen weights
- NoFree to use
Takes text, image, video; gives text.
How its listing describes it
GLM-5.3-FlashX is the high-speed variant of Z.ai's GLM-5.3-Flash, a native multimodal model delivering inference speeds of up to 200 tokens/s. Built on the same hybrid sparse and linear attention architecture...
Sources
- Z.ai: GLM 5.3 FlashX on OpenRouter — read 2 Oct 2026